21705: Migrate lib/cloud/ec2 from aws-sdk-go to aws-sdk-go-v2.
authorTom Clegg <tom@curii.com>
Thu, 2 May 2024 20:45:28 +0000 (16:45 -0400)
committerTom Clegg <tom@curii.com>
Mon, 13 May 2024 22:12:24 +0000 (18:12 -0400)
Arvados-DCO-1.1-Signed-off-by: Tom Clegg <tom@curii.com>

go.mod
go.sum
lib/cloud/ec2/ec2.go
lib/cloud/ec2/ec2_test.go

diff --git a/go.mod b/go.mod
index aaad05dab2dd8099c696b26de7196886b3ed7cde..f224b8ec06688323baea46902ed8f6388f37676d 100644 (file)
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
        github.com/Azure/go-autorest/autorest/to v0.4.0
        github.com/arvados/cgofuse v1.2.0-arvados1
        github.com/aws/aws-sdk-go v1.44.174
-       github.com/aws/aws-sdk-go-v2 v0.23.0
+       github.com/aws/aws-sdk-go-v2 v1.26.1
        github.com/bmatcuk/doublestar/v4 v4.6.1
        github.com/bradleypeabody/godap v0.0.0-20170216002349-c249933bc092
        github.com/coreos/go-oidc/v3 v3.5.0
@@ -64,6 +64,19 @@ require (
        github.com/Microsoft/go-winio v0.5.2 // indirect
        github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7 // indirect
        github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 // indirect
+       github.com/aws/aws-sdk-go-v2/config v1.27.11 // indirect
+       github.com/aws/aws-sdk-go-v2/credentials v1.17.11 // indirect
+       github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.1 // indirect
+       github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.5 // indirect
+       github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.5 // indirect
+       github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0 // indirect
+       github.com/aws/aws-sdk-go-v2/service/ec2 v1.160.0 // indirect
+       github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.2 // indirect
+       github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.7 // indirect
+       github.com/aws/aws-sdk-go-v2/service/sso v1.20.5 // indirect
+       github.com/aws/aws-sdk-go-v2/service/ssooidc v1.23.4 // indirect
+       github.com/aws/aws-sdk-go-v2/service/sts v1.28.6 // indirect
+       github.com/aws/smithy-go v1.20.2 // indirect
        github.com/beorn7/perks v1.0.1 // indirect
        github.com/bgentry/speakeasy v0.1.0 // indirect
        github.com/cespare/xxhash/v2 v2.2.0 // indirect
diff --git a/go.sum b/go.sum
index d5857898172b8cf93abdeab71df0a669372e96e5..23dfa819ead4f69958f4b023d4994485e17b7faf 100644 (file)
--- a/go.sum
+++ b/go.sum
@@ -55,6 +55,34 @@ github.com/aws/aws-sdk-go v1.44.174 h1:9lR4a6MKQW/t6YCG0ZKAt1GAkjdEPP8sWch/pfcuR
 github.com/aws/aws-sdk-go v1.44.174/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI=
 github.com/aws/aws-sdk-go-v2 v0.23.0 h1:+E1q1LLSfHSDn/DzOtdJOX+pLZE2HiNV2yO5AjZINwM=
 github.com/aws/aws-sdk-go-v2 v0.23.0/go.mod h1:2LhT7UgHOXK3UXONKI5OMgIyoQL6zTAw/jwIeX6yqzw=
+github.com/aws/aws-sdk-go-v2 v1.26.1 h1:5554eUqIYVWpU0YmeeYZ0wU64H2VLBs8TlhRB2L+EkA=
+github.com/aws/aws-sdk-go-v2 v1.26.1/go.mod h1:ffIFB97e2yNsv4aTSGkqtHnppsIJzw7G7BReUZ3jCXM=
+github.com/aws/aws-sdk-go-v2/config v1.27.11 h1:f47rANd2LQEYHda2ddSCKYId18/8BhSRM4BULGmfgNA=
+github.com/aws/aws-sdk-go-v2/config v1.27.11/go.mod h1:SMsV78RIOYdve1vf36z8LmnszlRWkwMQtomCAI0/mIE=
+github.com/aws/aws-sdk-go-v2/credentials v1.17.11 h1:YuIB1dJNf1Re822rriUOTxopaHHvIq0l/pX3fwO+Tzs=
+github.com/aws/aws-sdk-go-v2/credentials v1.17.11/go.mod h1:AQtFPsDH9bI2O+71anW6EKL+NcD7LG3dpKGMV4SShgo=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.1 h1:FVJ0r5XTHSmIHJV6KuDmdYhEpvlHpiSd38RQWhut5J4=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.1/go.mod h1:zusuAeqezXzAB24LGuzuekqMAEgWkVYukBec3kr3jUg=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.5 h1:aw39xVGeRWlWx9EzGVnhOR4yOjQDHPQ6o6NmBlscyQg=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.5/go.mod h1:FSaRudD0dXiMPK2UjknVwwTYyZMRsHv3TtkabsZih5I=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.5 h1:PG1F3OD1szkuQPzDw3CIQsRIrtTlUC3lP84taWzHlq0=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.5/go.mod h1:jU1li6RFryMz+so64PpKtudI+QzbKoIEivqdf6LNpOc=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0 h1:hT8rVHwugYE2lEfdFE0QWVo81lF7jMrYJVDWI+f+VxU=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0/go.mod h1:8tu/lYfQfFe6IGnaOdrpVgEL2IrrDOf6/m9RQum4NkY=
+github.com/aws/aws-sdk-go-v2/service/ec2 v1.160.0 h1:ooy0OFbrdSwgk32OFGPnvBwry5ySYCKkgTEbQ2hejs8=
+github.com/aws/aws-sdk-go-v2/service/ec2 v1.160.0/go.mod h1:xejKuuRDjz6z5OqyeLsz01MlOqqW7CqpAB4PabNvpu8=
+github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.2 h1:Ji0DY1xUsUr3I8cHps0G+XM3WWU16lP6yG8qu1GAZAs=
+github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.2/go.mod h1:5CsjAbs3NlGQyZNFACh+zztPDI7fU6eW9QsxjfnuBKg=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.7 h1:ogRAwT1/gxJBcSWDMZlgyFUM962F51A5CRhDLbxLdmo=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.7/go.mod h1:YCsIZhXfRPLFFCl5xxY+1T9RKzOKjCut+28JSX2DnAk=
+github.com/aws/aws-sdk-go-v2/service/sso v1.20.5 h1:vN8hEbpRnL7+Hopy9dzmRle1xmDc7o8tmY0klsr175w=
+github.com/aws/aws-sdk-go-v2/service/sso v1.20.5/go.mod h1:qGzynb/msuZIE8I75DVRCUXw3o3ZyBmUvMwQ2t/BrGM=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.23.4 h1:Jux+gDDyi1Lruk+KHF91tK2KCuY61kzoCpvtvJJBtOE=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.23.4/go.mod h1:mUYPBhaF2lGiukDEjJX2BLRRKTmoUSitGDUgM4tRxak=
+github.com/aws/aws-sdk-go-v2/service/sts v1.28.6 h1:cwIxeBttqPN3qkaAjcEcsh8NYr8n2HZPkcKgPAi1phU=
+github.com/aws/aws-sdk-go-v2/service/sts v1.28.6/go.mod h1:FZf1/nKNEkHdGGJP/cI2MoIMquumuRK6ol3QQJNDxmw=
+github.com/aws/smithy-go v1.20.2 h1:tbp628ireGtzcHDDmLT/6ADHidqnwgF57XOXZe6tp4Q=
+github.com/aws/smithy-go v1.20.2/go.mod h1:krry+ya/rV9RDcV/Q16kpu6ypI4K2czasz0NC3qS14E=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bgentry/speakeasy v0.1.0 h1:ByYyxL9InA1OWqxJqqp2A5pYHUrCiAL6K3J+LKSsQkY=
index 6251f18df0fc485f876e710731875a9e9061e14d..5eb1afd3b58f189e4da3e75814f243d9b63227de 100644 (file)
@@ -5,14 +5,17 @@
 package ec2
 
 import (
+       "context"
        "crypto/md5"
        "crypto/rsa"
        "crypto/sha1"
        "crypto/x509"
        "encoding/base64"
        "encoding/json"
+       "errors"
        "fmt"
        "math/big"
+       "os"
        "regexp"
        "strconv"
        "strings"
@@ -22,14 +25,12 @@ import (
 
        "git.arvados.org/arvados.git/lib/cloud"
        "git.arvados.org/arvados.git/sdk/go/arvados"
-       "github.com/aws/aws-sdk-go/aws"
-       "github.com/aws/aws-sdk-go/aws/awserr"
-       "github.com/aws/aws-sdk-go/aws/credentials"
-       "github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds"
-       "github.com/aws/aws-sdk-go/aws/ec2metadata"
-       "github.com/aws/aws-sdk-go/aws/request"
-       "github.com/aws/aws-sdk-go/aws/session"
-       "github.com/aws/aws-sdk-go/service/ec2"
+       "github.com/aws/aws-sdk-go-v2/aws"
+       "github.com/aws/aws-sdk-go-v2/aws/retry"
+       awsconfig "github.com/aws/aws-sdk-go-v2/config"
+       "github.com/aws/aws-sdk-go-v2/service/ec2"
+       "github.com/aws/aws-sdk-go-v2/service/ec2/types"
+       "github.com/aws/smithy-go"
        "github.com/prometheus/client_golang/prometheus"
        "github.com/sirupsen/logrus"
        "golang.org/x/crypto/ssh"
@@ -50,7 +51,7 @@ type ec2InstanceSetConfig struct {
        SecurityGroupIDs        arvados.StringSet
        SubnetID                sliceOrSingleString
        AdminUsername           string
-       EBSVolumeType           string
+       EBSVolumeType           types.VolumeType
        EBSPrice                float64
        IAMInstanceProfile      string
        SpotPriceUpdateInterval arvados.Duration
@@ -90,14 +91,14 @@ func (ss *sliceOrSingleString) UnmarshalJSON(data []byte) error {
 }
 
 type ec2Interface interface {
-       DescribeKeyPairs(input *ec2.DescribeKeyPairsInput) (*ec2.DescribeKeyPairsOutput, error)
-       ImportKeyPair(input *ec2.ImportKeyPairInput) (*ec2.ImportKeyPairOutput, error)
-       RunInstances(input *ec2.RunInstancesInput) (*ec2.Reservation, error)
-       DescribeInstances(input *ec2.DescribeInstancesInput) (*ec2.DescribeInstancesOutput, error)
-       DescribeInstanceStatusPages(input *ec2.DescribeInstanceStatusInput, fn func(*ec2.DescribeInstanceStatusOutput, bool) bool) error
-       DescribeSpotPriceHistoryPages(input *ec2.DescribeSpotPriceHistoryInput, fn func(*ec2.DescribeSpotPriceHistoryOutput, bool) bool) error
-       CreateTags(input *ec2.CreateTagsInput) (*ec2.CreateTagsOutput, error)
-       TerminateInstances(input *ec2.TerminateInstancesInput) (*ec2.TerminateInstancesOutput, error)
+       DescribeKeyPairs(context.Context, *ec2.DescribeKeyPairsInput, ...func(*ec2.Options)) (*ec2.DescribeKeyPairsOutput, error)
+       ImportKeyPair(context.Context, *ec2.ImportKeyPairInput, ...func(*ec2.Options)) (*ec2.ImportKeyPairOutput, error)
+       RunInstances(context.Context, *ec2.RunInstancesInput, ...func(*ec2.Options)) (*ec2.RunInstancesOutput, error)
+       DescribeInstances(context.Context, *ec2.DescribeInstancesInput, ...func(*ec2.Options)) (*ec2.DescribeInstancesOutput, error)
+       DescribeInstanceStatus(context.Context, *ec2.DescribeInstanceStatusInput, ...func(*ec2.Options)) (*ec2.DescribeInstanceStatusOutput, error)
+       DescribeSpotPriceHistory(context.Context, *ec2.DescribeSpotPriceHistoryInput, ...func(*ec2.Options)) (*ec2.DescribeSpotPriceHistoryOutput, error)
+       CreateTags(context.Context, *ec2.CreateTagsInput, ...func(*ec2.Options)) (*ec2.CreateTagsOutput, error)
+       TerminateInstances(context.Context, *ec2.TerminateInstancesInput, ...func(*ec2.Options)) (*ec2.TerminateInstancesOutput, error)
 }
 
 type ec2InstanceSet struct {
@@ -129,19 +130,22 @@ func newEC2InstanceSet(config json.RawMessage, instanceSetID cloud.InstanceSetID
                return nil, err
        }
 
-       sess, err := session.NewSession()
+       if len(instanceSet.ec2config.AccessKeyID)+len(instanceSet.ec2config.SecretAccessKey) > 0 {
+               // AWS SDK will use credentials in environment vars if
+               // present.
+               os.Setenv("AWS_ACCESS_KEY_ID", instanceSet.ec2config.AccessKeyID)
+               os.Setenv("AWS_SECRET_ACCESS_KEY", instanceSet.ec2config.SecretAccessKey)
+       } else {
+               os.Unsetenv("AWS_ACCESS_KEY_ID")
+               os.Unsetenv("AWS_SECRET_ACCESS_KEY")
+       }
+       awsConfig, err := awsconfig.LoadDefaultConfig(context.TODO(),
+               awsconfig.WithRegion(instanceSet.ec2config.Region))
        if err != nil {
                return nil, err
        }
-       // First try any static credentials, fall back to an IAM instance profile/role
-       creds := credentials.NewChainCredentials(
-               []credentials.Provider{
-                       &credentials.StaticProvider{Value: credentials.Value{AccessKeyID: instanceSet.ec2config.AccessKeyID, SecretAccessKey: instanceSet.ec2config.SecretAccessKey}},
-                       &ec2rolecreds.EC2RoleProvider{Client: ec2metadata.New(sess)},
-               })
 
-       awsConfig := aws.NewConfig().WithCredentials(creds).WithRegion(instanceSet.ec2config.Region)
-       instanceSet.client = ec2.New(session.Must(session.NewSession(awsConfig)))
+       instanceSet.client = ec2.NewFromConfig(awsConfig)
        instanceSet.keys = make(map[string]string)
        if instanceSet.ec2config.EBSVolumeType == "" {
                instanceSet.ec2config.EBSVolumeType = "gp2"
@@ -219,9 +223,9 @@ func (instanceSet *ec2InstanceSet) Create(
        initCommand cloud.InitCommand,
        publicKey ssh.PublicKey) (cloud.Instance, error) {
 
-       ec2tags := []*ec2.Tag{}
+       ec2tags := []types.Tag{}
        for k, v := range newTags {
-               ec2tags = append(ec2tags, &ec2.Tag{
+               ec2tags = append(ec2tags, types.Tag{
                        Key:   aws.String(k),
                        Value: aws.String(v),
                })
@@ -234,29 +238,28 @@ func (instanceSet *ec2InstanceSet) Create(
 
        rii := ec2.RunInstancesInput{
                ImageId:      aws.String(string(imageID)),
-               InstanceType: &instanceType.ProviderType,
-               MaxCount:     aws.Int64(1),
-               MinCount:     aws.Int64(1),
-
-               NetworkInterfaces: []*ec2.InstanceNetworkInterfaceSpecification{
-                       {
-                               AssociatePublicIpAddress: aws.Bool(false),
-                               DeleteOnTermination:      aws.Bool(true),
-                               DeviceIndex:              aws.Int64(0),
-                               Groups:                   aws.StringSlice(groups),
-                       }},
+               InstanceType: types.InstanceType(instanceType.ProviderType),
+               MaxCount:     aws.Int32(1),
+               MinCount:     aws.Int32(1),
+
+               NetworkInterfaces: []types.InstanceNetworkInterfaceSpecification{{
+                       AssociatePublicIpAddress: aws.Bool(false),
+                       DeleteOnTermination:      aws.Bool(true),
+                       DeviceIndex:              aws.Int32(0),
+                       Groups:                   groups,
+               }},
                DisableApiTermination:             aws.Bool(false),
-               InstanceInitiatedShutdownBehavior: aws.String("terminate"),
-               TagSpecifications: []*ec2.TagSpecification{
+               InstanceInitiatedShutdownBehavior: types.ShutdownBehaviorTerminate,
+               TagSpecifications: []types.TagSpecification{
                        {
-                               ResourceType: aws.String("instance"),
+                               ResourceType: types.ResourceTypeInstance,
                                Tags:         ec2tags,
                        }},
-               MetadataOptions: &ec2.InstanceMetadataOptionsRequest{
+               MetadataOptions: &types.InstanceMetadataOptionsRequest{
                        // Require IMDSv2, as described at
                        // https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/configuring-IMDS-new-instances.html
-                       HttpEndpoint: aws.String(ec2.InstanceMetadataEndpointStateEnabled),
-                       HttpTokens:   aws.String(ec2.HttpTokensStateRequired),
+                       HttpEndpoint: types.InstanceMetadataEndpointStateEnabled,
+                       HttpTokens:   types.HttpTokensStateRequired,
                },
                UserData: aws.String(base64.StdEncoding.EncodeToString([]byte("#!/bin/sh\n" + initCommand + "\n"))),
        }
@@ -270,31 +273,31 @@ func (instanceSet *ec2InstanceSet) Create(
        }
 
        if instanceType.AddedScratch > 0 {
-               rii.BlockDeviceMappings = []*ec2.BlockDeviceMapping{{
+               rii.BlockDeviceMappings = []types.BlockDeviceMapping{{
                        DeviceName: aws.String("/dev/xvdt"),
-                       Ebs: &ec2.EbsBlockDevice{
+                       Ebs: &types.EbsBlockDevice{
                                DeleteOnTermination: aws.Bool(true),
-                               VolumeSize:          aws.Int64((int64(instanceType.AddedScratch) + (1<<30 - 1)) >> 30),
-                               VolumeType:          &instanceSet.ec2config.EBSVolumeType,
+                               VolumeSize:          aws.Int32(int32((int64(instanceType.AddedScratch) + (1<<30 - 1)) >> 30)),
+                               VolumeType:          instanceSet.ec2config.EBSVolumeType,
                        }}}
        }
 
        if instanceType.Preemptible {
-               rii.InstanceMarketOptions = &ec2.InstanceMarketOptionsRequest{
-                       MarketType: aws.String("spot"),
-                       SpotOptions: &ec2.SpotMarketOptions{
-                               InstanceInterruptionBehavior: aws.String("terminate"),
+               rii.InstanceMarketOptions = &types.InstanceMarketOptionsRequest{
+                       MarketType: types.MarketTypeSpot,
+                       SpotOptions: &types.SpotMarketOptions{
+                               InstanceInterruptionBehavior: types.InstanceInterruptionBehaviorTerminate,
                                MaxPrice:                     aws.String(fmt.Sprintf("%v", instanceType.Price)),
                        }}
        }
 
        if instanceSet.ec2config.IAMInstanceProfile != "" {
-               rii.IamInstanceProfile = &ec2.IamInstanceProfileSpecification{
+               rii.IamInstanceProfile = &types.IamInstanceProfileSpecification{
                        Name: aws.String(instanceSet.ec2config.IAMInstanceProfile),
                }
        }
 
-       var rsv *ec2.Reservation
+       var rsv *ec2.RunInstancesOutput
        var errToReturn error
        subnets := instanceSet.ec2config.SubnetID
        currentSubnetIDIndex := int(atomic.LoadInt32(&instanceSet.currentSubnetIDIndex))
@@ -307,7 +310,7 @@ func (instanceSet *ec2InstanceSet) Create(
                        rii.NetworkInterfaces[0].SubnetId = aws.String(trySubnet)
                }
                var err error
-               rsv, err = instanceSet.client.RunInstances(&rii)
+               rsv, err = instanceSet.client.RunInstances(context.TODO(), &rii)
                instanceSet.mInstanceStarts.WithLabelValues(trySubnet, boolLabelValue[err == nil]).Add(1)
                if !isErrorCapacity(errToReturn) || isErrorCapacity(err) {
                        // We want to return the last capacity error,
@@ -353,10 +356,10 @@ func (instanceSet *ec2InstanceSet) getKeyName(publicKey ssh.PublicKey) (string,
        if keyname, ok := instanceSet.keys[md5keyFingerprint]; ok {
                return keyname, nil
        }
-       keyout, err := instanceSet.client.DescribeKeyPairs(&ec2.DescribeKeyPairsInput{
-               Filters: []*ec2.Filter{{
+       keyout, err := instanceSet.client.DescribeKeyPairs(context.TODO(), &ec2.DescribeKeyPairsInput{
+               Filters: []types.Filter{{
                        Name:   aws.String("fingerprint"),
-                       Values: []*string{&md5keyFingerprint, &sha1keyFingerprint},
+                       Values: []string{md5keyFingerprint, sha1keyFingerprint},
                }},
        })
        if err != nil {
@@ -366,7 +369,7 @@ func (instanceSet *ec2InstanceSet) getKeyName(publicKey ssh.PublicKey) (string,
                return *(keyout.KeyPairs[0].KeyName), nil
        }
        keyname := "arvados-dispatch-keypair-" + md5keyFingerprint
-       _, err = instanceSet.client.ImportKeyPair(&ec2.ImportKeyPairInput{
+       _, err = instanceSet.client.ImportKeyPair(context.TODO(), &ec2.ImportKeyPairInput{
                KeyName:           &keyname,
                PublicKeyMaterial: ssh.MarshalAuthorizedKey(publicKey),
        })
@@ -378,17 +381,17 @@ func (instanceSet *ec2InstanceSet) getKeyName(publicKey ssh.PublicKey) (string,
 }
 
 func (instanceSet *ec2InstanceSet) Instances(tags cloud.InstanceTags) (instances []cloud.Instance, err error) {
-       var filters []*ec2.Filter
+       var filters []types.Filter
        for k, v := range tags {
-               filters = append(filters, &ec2.Filter{
+               filters = append(filters, types.Filter{
                        Name:   aws.String("tag:" + k),
-                       Values: []*string{aws.String(v)},
+                       Values: []string{v},
                })
        }
        needAZs := false
        dii := &ec2.DescribeInstancesInput{Filters: filters}
        for {
-               dio, err := instanceSet.client.DescribeInstances(dii)
+               dio, err := instanceSet.client.DescribeInstances(context.TODO(), dii)
                err = wrapError(err, &instanceSet.throttleDelayInstances)
                if err != nil {
                        return nil, err
@@ -396,12 +399,15 @@ func (instanceSet *ec2InstanceSet) Instances(tags cloud.InstanceTags) (instances
 
                for _, rsv := range dio.Reservations {
                        for _, inst := range rsv.Instances {
-                               if *inst.State.Name != "shutting-down" && *inst.State.Name != "terminated" {
+                               switch inst.State.Name {
+                               case types.InstanceStateNameShuttingDown:
+                               case types.InstanceStateNameTerminated:
+                               default:
                                        instances = append(instances, &ec2Instance{
                                                provider: instanceSet,
                                                instance: inst,
                                        })
-                                       if aws.StringValue(inst.InstanceLifecycle) == "spot" {
+                                       if inst.InstanceLifecycle == types.InstanceLifecycleTypeSpot {
                                                needAZs = true
                                        }
                                }
@@ -414,16 +420,20 @@ func (instanceSet *ec2InstanceSet) Instances(tags cloud.InstanceTags) (instances
        }
        if needAZs && instanceSet.ec2config.SpotPriceUpdateInterval > 0 {
                az := map[string]string{}
-               err := instanceSet.client.DescribeInstanceStatusPages(&ec2.DescribeInstanceStatusInput{
-                       IncludeAllInstances: aws.Bool(true),
-               }, func(page *ec2.DescribeInstanceStatusOutput, lastPage bool) bool {
+               disi := &ec2.DescribeInstanceStatusInput{IncludeAllInstances: aws.Bool(true)}
+               for {
+                       page, err := instanceSet.client.DescribeInstanceStatus(context.TODO(), disi)
+                       if err != nil {
+                               instanceSet.logger.Warnf("error getting instance statuses: %s", err)
+                               break
+                       }
                        for _, ent := range page.InstanceStatuses {
                                az[*ent.InstanceId] = *ent.AvailabilityZone
                        }
-                       return true
-               })
-               if err != nil {
-                       instanceSet.logger.Warnf("error getting instance statuses: %s", err)
+                       if page.NextToken == nil {
+                               break
+                       }
+                       disi.NextToken = page.NextToken
                }
                for _, inst := range instances {
                        inst := inst.(*ec2Instance)
@@ -475,28 +485,28 @@ func (instanceSet *ec2InstanceSet) updateSpotPrices(instances []cloud.Instance)
        updateTime := time.Now()
        staleTime := updateTime.Add(-instanceSet.ec2config.SpotPriceUpdateInterval.Duration())
        needUpdate := false
-       allTypes := map[string]bool{}
+       allTypes := map[types.InstanceType]bool{}
 
        for _, inst := range instances {
                ec2inst := inst.(*ec2Instance).instance
-               if aws.StringValue(ec2inst.InstanceLifecycle) == "spot" {
+               if ec2inst.InstanceLifecycle == types.InstanceLifecycleTypeSpot {
                        pk := priceKey{
-                               instanceType:     *ec2inst.InstanceType,
+                               instanceType:     string(ec2inst.InstanceType),
                                spot:             true,
                                availabilityZone: inst.(*ec2Instance).availabilityZone,
                        }
                        if instanceSet.pricesUpdated[pk].Before(staleTime) {
                                needUpdate = true
                        }
-                       allTypes[*ec2inst.InstanceType] = true
+                       allTypes[ec2inst.InstanceType] = true
                }
        }
        if !needUpdate {
                return
        }
-       var typeFilterValues []*string
+       var typeFilterValues []string
        for instanceType := range allTypes {
-               typeFilterValues = append(typeFilterValues, aws.String(instanceType))
+               typeFilterValues = append(typeFilterValues, string(instanceType))
        }
        // Get 3x update interval worth of pricing data. (Ideally the
        // AWS API would tell us "we have shown you all of the price
@@ -507,14 +517,19 @@ func (instanceSet *ec2InstanceSet) updateSpotPrices(instances []cloud.Instance)
        // row.
        dsphi := &ec2.DescribeSpotPriceHistoryInput{
                StartTime: aws.Time(updateTime.Add(-3 * instanceSet.ec2config.SpotPriceUpdateInterval.Duration())),
-               Filters: []*ec2.Filter{
-                       &ec2.Filter{Name: aws.String("instance-type"), Values: typeFilterValues},
-                       &ec2.Filter{Name: aws.String("product-description"), Values: []*string{aws.String("Linux/UNIX")}},
+               Filters: []types.Filter{
+                       types.Filter{Name: aws.String("instance-type"), Values: typeFilterValues},
+                       types.Filter{Name: aws.String("product-description"), Values: []string{"Linux/UNIX"}},
                },
        }
-       err := instanceSet.client.DescribeSpotPriceHistoryPages(dsphi, func(page *ec2.DescribeSpotPriceHistoryOutput, lastPage bool) bool {
+       for {
+               page, err := instanceSet.client.DescribeSpotPriceHistory(context.TODO(), dsphi)
+               if err != nil {
+                       instanceSet.logger.Warnf("error retrieving spot instance prices: %s", err)
+                       break
+               }
                for _, ent := range page.SpotPriceHistory {
-                       if ent.InstanceType == nil || ent.SpotPrice == nil || ent.Timestamp == nil {
+                       if ent.InstanceType == "" || ent.SpotPrice == nil || ent.Timestamp == nil {
                                // bogus record?
                                continue
                        }
@@ -524,7 +539,7 @@ func (instanceSet *ec2InstanceSet) updateSpotPrices(instances []cloud.Instance)
                                continue
                        }
                        pk := priceKey{
-                               instanceType:     *ent.InstanceType,
+                               instanceType:     string(ent.InstanceType),
                                spot:             true,
                                availabilityZone: *ent.AvailabilityZone,
                        }
@@ -534,10 +549,10 @@ func (instanceSet *ec2InstanceSet) updateSpotPrices(instances []cloud.Instance)
                        })
                        instanceSet.pricesUpdated[pk] = updateTime
                }
-               return true
-       })
-       if err != nil {
-               instanceSet.logger.Warnf("error retrieving spot instance prices: %s", err)
+               if page.NextToken == nil {
+                       break
+               }
+               dsphi.NextToken = page.NextToken
        }
 
        expiredTime := updateTime.Add(-64 * instanceSet.ec2config.SpotPriceUpdateInterval.Duration())
@@ -557,7 +572,7 @@ func (instanceSet *ec2InstanceSet) Stop() {
 
 type ec2Instance struct {
        provider         *ec2InstanceSet
-       instance         *ec2.Instance
+       instance         types.Instance
        availabilityZone string // sometimes available for spot instances
 }
 
@@ -570,20 +585,20 @@ func (inst *ec2Instance) String() string {
 }
 
 func (inst *ec2Instance) ProviderType() string {
-       return *inst.instance.InstanceType
+       return string(inst.instance.InstanceType)
 }
 
 func (inst *ec2Instance) SetTags(newTags cloud.InstanceTags) error {
-       var ec2tags []*ec2.Tag
+       var ec2tags []types.Tag
        for k, v := range newTags {
-               ec2tags = append(ec2tags, &ec2.Tag{
+               ec2tags = append(ec2tags, types.Tag{
                        Key:   aws.String(k),
                        Value: aws.String(v),
                })
        }
 
-       _, err := inst.provider.client.CreateTags(&ec2.CreateTagsInput{
-               Resources: []*string{inst.instance.InstanceId},
+       _, err := inst.provider.client.CreateTags(context.TODO(), &ec2.CreateTagsInput{
+               Resources: []string{*inst.instance.InstanceId},
                Tags:      ec2tags,
        })
 
@@ -601,8 +616,8 @@ func (inst *ec2Instance) Tags() cloud.InstanceTags {
 }
 
 func (inst *ec2Instance) Destroy() error {
-       _, err := inst.provider.client.TerminateInstances(&ec2.TerminateInstancesInput{
-               InstanceIds: []*string{inst.instance.InstanceId},
+       _, err := inst.provider.client.TerminateInstances(context.TODO(), &ec2.TerminateInstancesInput{
+               InstanceIds: []string{*inst.instance.InstanceId},
        })
        return err
 }
@@ -653,8 +668,8 @@ func (inst *ec2Instance) PriceHistory(instType arvados.InstanceType) []cloud.Ins
        // inst.provider.prices only for spot instances, so if
        // spot==false here, we will return no data.
        pk := priceKey{
-               instanceType:     *inst.instance.InstanceType,
-               spot:             aws.StringValue(inst.instance.InstanceLifecycle) == "spot",
+               instanceType:     string(inst.instance.InstanceType),
+               spot:             inst.instance.InstanceLifecycle == types.InstanceLifecycleTypeSpot,
                availabilityZone: inst.availabilityZone,
        }
        var prices []cloud.InstancePrice
@@ -706,8 +721,9 @@ var isCodeQuota = map[string]bool{
 //
 // Returns false if error is nil.
 func isErrorQuota(err error) bool {
-       if aerr, ok := err.(awserr.Error); ok && aerr != nil {
-               if _, ok := isCodeQuota[aerr.Code()]; ok {
+       var aerr smithy.APIError
+       if errors.As(err, &aerr) {
+               if _, ok := isCodeQuota[aerr.ErrorCode()]; ok {
                        return true
                }
        }
@@ -719,11 +735,11 @@ var reSubnetSpecificInvalidParameterMessage = regexp.MustCompile(`(?ms).*( subne
 // isErrorSubnetSpecific returns true if the problem encountered by
 // RunInstances might be avoided by trying a different subnet.
 func isErrorSubnetSpecific(err error) bool {
-       aerr, ok := err.(awserr.Error)
-       if !ok {
+       var aerr smithy.APIError
+       if !errors.As(err, &aerr) {
                return false
        }
-       code := aerr.Code()
+       code := aerr.ErrorCode()
        return strings.Contains(code, "Subnet") ||
                code == "InsufficientInstanceCapacity" ||
                code == "InsufficientVolumeCapacity" ||
@@ -732,7 +748,7 @@ func isErrorSubnetSpecific(err error) bool {
                // we look for substrings in code/message instead of
                // only using specific codes here.
                (strings.Contains(code, "InvalidParameter") &&
-                       reSubnetSpecificInvalidParameterMessage.MatchString(aerr.Message()))
+                       reSubnetSpecificInvalidParameterMessage.MatchString(aerr.ErrorMessage()))
 }
 
 // isErrorCapacity returns true if the error indicates lack of
@@ -740,13 +756,13 @@ func isErrorSubnetSpecific(err error) bool {
 // type -- i.e., retrying with a different instance type might
 // succeed.
 func isErrorCapacity(err error) bool {
-       aerr, ok := err.(awserr.Error)
-       if !ok {
+       var aerr smithy.APIError
+       if !errors.As(err, &aerr) {
                return false
        }
-       code := aerr.Code()
+       code := aerr.ErrorCode()
        return code == "InsufficientInstanceCapacity" ||
-               (code == "Unsupported" && strings.Contains(aerr.Message(), "requested instance type"))
+               (code == "Unsupported" && strings.Contains(aerr.ErrorMessage(), "requested instance type"))
 }
 
 type ec2QuotaError struct {
@@ -757,8 +773,17 @@ func (er *ec2QuotaError) IsQuotaError() bool {
        return true
 }
 
+func isThrottleError(err error) bool {
+       var aerr smithy.APIError
+       if !errors.As(err, &aerr) {
+               return false
+       }
+       _, is := retry.DefaultThrottleErrorCodes[aerr.ErrorCode()]
+       return is
+}
+
 func wrapError(err error, throttleValue *atomic.Value) error {
-       if request.IsErrorThrottle(err) {
+       if isThrottleError(err) {
                // Back off exponentially until an upstream call
                // either succeeds or returns a non-throttle error.
                d, _ := throttleValue.Load().(time.Duration)
index 5e6cf2c82b5caee81de1255936ee30a2edeb1024..709094d6dba5a35da43cf2a6f2abeb33abfa5ec1 100644 (file)
 package ec2
 
 import (
+       "context"
        "encoding/json"
        "errors"
        "flag"
-       "fmt"
        "sync/atomic"
        "testing"
        "time"
@@ -37,9 +37,10 @@ import (
        "git.arvados.org/arvados.git/sdk/go/arvadostest"
        "git.arvados.org/arvados.git/sdk/go/config"
        "git.arvados.org/arvados.git/sdk/go/ctxlog"
-       "github.com/aws/aws-sdk-go/aws"
-       "github.com/aws/aws-sdk-go/aws/awserr"
-       "github.com/aws/aws-sdk-go/service/ec2"
+       "github.com/aws/aws-sdk-go-v2/aws"
+       "github.com/aws/aws-sdk-go-v2/service/ec2"
+       "github.com/aws/aws-sdk-go-v2/service/ec2/types"
+       "github.com/aws/smithy-go"
        "github.com/ghodss/yaml"
        "github.com/prometheus/client_golang/prometheus"
        "github.com/sirupsen/logrus"
@@ -101,17 +102,17 @@ type ec2stub struct {
        subnetErrorOnRunInstances map[string]error
 }
 
-func (e *ec2stub) ImportKeyPair(input *ec2.ImportKeyPairInput) (*ec2.ImportKeyPairOutput, error) {
+func (e *ec2stub) ImportKeyPair(ctx context.Context, input *ec2.ImportKeyPairInput, _ ...func(*ec2.Options)) (*ec2.ImportKeyPairOutput, error) {
        e.importKeyPairCalls = append(e.importKeyPairCalls, input)
        return nil, nil
 }
 
-func (e *ec2stub) DescribeKeyPairs(input *ec2.DescribeKeyPairsInput) (*ec2.DescribeKeyPairsOutput, error) {
+func (e *ec2stub) DescribeKeyPairs(ctx context.Context, input *ec2.DescribeKeyPairsInput, _ ...func(*ec2.Options)) (*ec2.DescribeKeyPairsOutput, error) {
        e.describeKeyPairsCalls = append(e.describeKeyPairsCalls, input)
        return &ec2.DescribeKeyPairsOutput{}, nil
 }
 
-func (e *ec2stub) RunInstances(input *ec2.RunInstancesInput) (*ec2.Reservation, error) {
+func (e *ec2stub) RunInstances(ctx context.Context, input *ec2.RunInstancesInput, _ ...func(*ec2.Options)) (*ec2.RunInstancesOutput, error) {
        e.runInstancesCalls = append(e.runInstancesCalls, input)
        if len(input.NetworkInterfaces) > 0 && input.NetworkInterfaces[0].SubnetId != nil {
                err := e.subnetErrorOnRunInstances[*input.NetworkInterfaces[0].SubnetId]
@@ -119,98 +120,90 @@ func (e *ec2stub) RunInstances(input *ec2.RunInstancesInput) (*ec2.Reservation,
                        return nil, err
                }
        }
-       return &ec2.Reservation{Instances: []*ec2.Instance{{
+       return &ec2.RunInstancesOutput{Instances: []types.Instance{{
                InstanceId:   aws.String("i-123"),
-               InstanceType: aws.String("t2.micro"),
+               InstanceType: types.InstanceTypeT2Micro,
                Tags:         input.TagSpecifications[0].Tags,
        }}}, nil
 }
 
-func (e *ec2stub) DescribeInstances(input *ec2.DescribeInstancesInput) (*ec2.DescribeInstancesOutput, error) {
+func (e *ec2stub) DescribeInstances(ctx context.Context, input *ec2.DescribeInstancesInput, _ ...func(*ec2.Options)) (*ec2.DescribeInstancesOutput, error) {
        return &ec2.DescribeInstancesOutput{
-               Reservations: []*ec2.Reservation{{
-                       Instances: []*ec2.Instance{{
+               Reservations: []types.Reservation{{
+                       Instances: []types.Instance{{
                                InstanceId:        aws.String("i-123"),
-                               InstanceLifecycle: aws.String("spot"),
-                               InstanceType:      aws.String("t2.micro"),
+                               InstanceLifecycle: types.InstanceLifecycleTypeSpot,
+                               InstanceType:      types.InstanceTypeT2Micro,
                                PrivateIpAddress:  aws.String("10.1.2.3"),
-                               State:             &ec2.InstanceState{Name: aws.String("running"), Code: aws.Int64(16)},
+                               State:             &types.InstanceState{Name: types.InstanceStateNameRunning, Code: aws.Int32(16)},
                        }, {
                                InstanceId:        aws.String("i-124"),
-                               InstanceLifecycle: aws.String("spot"),
-                               InstanceType:      aws.String("t2.micro"),
+                               InstanceLifecycle: types.InstanceLifecycleTypeSpot,
+                               InstanceType:      types.InstanceTypeT2Micro,
                                PrivateIpAddress:  aws.String("10.1.2.4"),
-                               State:             &ec2.InstanceState{Name: aws.String("running"), Code: aws.Int64(16)},
+                               State:             &types.InstanceState{Name: types.InstanceStateNameRunning, Code: aws.Int32(16)},
                        }},
                }},
        }, nil
 }
 
-func (e *ec2stub) DescribeInstanceStatusPages(input *ec2.DescribeInstanceStatusInput, fn func(*ec2.DescribeInstanceStatusOutput, bool) bool) error {
-       fn(&ec2.DescribeInstanceStatusOutput{
-               InstanceStatuses: []*ec2.InstanceStatus{{
+func (e *ec2stub) DescribeInstanceStatus(ctx context.Context, input *ec2.DescribeInstanceStatusInput, _ ...func(*ec2.Options)) (*ec2.DescribeInstanceStatusOutput, error) {
+       return &ec2.DescribeInstanceStatusOutput{
+               InstanceStatuses: []types.InstanceStatus{{
                        InstanceId:       aws.String("i-123"),
                        AvailabilityZone: aws.String("aa-east-1a"),
                }, {
                        InstanceId:       aws.String("i-124"),
                        AvailabilityZone: aws.String("aa-east-1a"),
                }},
-       }, true)
-       return nil
+       }, nil
 }
 
-func (e *ec2stub) DescribeSpotPriceHistoryPages(input *ec2.DescribeSpotPriceHistoryInput, fn func(*ec2.DescribeSpotPriceHistoryOutput, bool) bool) error {
-       if !fn(&ec2.DescribeSpotPriceHistoryOutput{
-               SpotPriceHistory: []*ec2.SpotPrice{
-                       &ec2.SpotPrice{
-                               InstanceType:     aws.String("t2.micro"),
-                               AvailabilityZone: aws.String("aa-east-1a"),
-                               SpotPrice:        aws.String("0.005"),
-                               Timestamp:        aws.Time(e.reftime.Add(-9 * time.Minute)),
+func (e *ec2stub) DescribeSpotPriceHistory(ctx context.Context, input *ec2.DescribeSpotPriceHistoryInput, _ ...func(*ec2.Options)) (*ec2.DescribeSpotPriceHistoryOutput, error) {
+       if input.NextToken == nil {
+               return &ec2.DescribeSpotPriceHistoryOutput{
+                       SpotPriceHistory: []types.SpotPrice{
+                               types.SpotPrice{
+                                       InstanceType:     types.InstanceTypeT2Micro,
+                                       AvailabilityZone: aws.String("aa-east-1a"),
+                                       SpotPrice:        aws.String("0.005"),
+                                       Timestamp:        aws.Time(e.reftime.Add(-9 * time.Minute)),
+                               },
+                               types.SpotPrice{
+                                       InstanceType:     types.InstanceTypeT2Micro,
+                                       AvailabilityZone: aws.String("aa-east-1a"),
+                                       SpotPrice:        aws.String("0.015"),
+                                       Timestamp:        aws.Time(e.reftime.Add(-5 * time.Minute)),
+                               },
                        },
-                       &ec2.SpotPrice{
-                               InstanceType:     aws.String("t2.micro"),
-                               AvailabilityZone: aws.String("aa-east-1a"),
-                               SpotPrice:        aws.String("0.015"),
-                               Timestamp:        aws.Time(e.reftime.Add(-5 * time.Minute)),
+                       NextToken: aws.String("stubnexttoken"),
+               }, nil
+       } else {
+               return &ec2.DescribeSpotPriceHistoryOutput{
+                       SpotPriceHistory: []types.SpotPrice{
+                               types.SpotPrice{
+                                       InstanceType:     types.InstanceTypeT2Micro,
+                                       AvailabilityZone: aws.String("aa-east-1a"),
+                                       SpotPrice:        aws.String("0.01"),
+                                       Timestamp:        aws.Time(e.reftime.Add(-2 * time.Minute)),
+                               },
                        },
-               },
-       }, false) {
-               return nil
+               }, nil
        }
-       fn(&ec2.DescribeSpotPriceHistoryOutput{
-               SpotPriceHistory: []*ec2.SpotPrice{
-                       &ec2.SpotPrice{
-                               InstanceType:     aws.String("t2.micro"),
-                               AvailabilityZone: aws.String("aa-east-1a"),
-                               SpotPrice:        aws.String("0.01"),
-                               Timestamp:        aws.Time(e.reftime.Add(-2 * time.Minute)),
-                       },
-               },
-       }, true)
-       return nil
 }
 
-func (e *ec2stub) CreateTags(input *ec2.CreateTagsInput) (*ec2.CreateTagsOutput, error) {
+func (e *ec2stub) CreateTags(ctx context.Context, input *ec2.CreateTagsInput, _ ...func(*ec2.Options)) (*ec2.CreateTagsOutput, error) {
        return nil, nil
 }
 
-func (e *ec2stub) TerminateInstances(input *ec2.TerminateInstancesInput) (*ec2.TerminateInstancesOutput, error) {
+func (e *ec2stub) TerminateInstances(ctx context.Context, input *ec2.TerminateInstancesInput, _ ...func(*ec2.Options)) (*ec2.TerminateInstancesOutput, error) {
        return nil, nil
 }
 
-type ec2stubError struct {
-       code    string
-       message string
-}
-
-func (err *ec2stubError) Code() string    { return err.code }
-func (err *ec2stubError) Message() string { return err.message }
-func (err *ec2stubError) Error() string   { return fmt.Sprintf("%s: %s", err.code, err.message) }
-func (err *ec2stubError) OrigErr() error  { return errors.New("stub OrigErr") }
+type ec2stubError = smithy.GenericAPIError
 
-// Ensure ec2stubError satisfies the aws.Error interface
-var _ = awserr.Error(&ec2stubError{})
+// Ensure ec2stubError satisfies the smithy.APIError interface
+var _ = smithy.APIError(&ec2stubError{})
 
 func GetInstanceSet(c *check.C, conf string) (*ec2InstanceSet, cloud.ImageID, arvados.Cluster, *prometheus.Registry) {
        reg := prometheus.NewRegistry()
@@ -280,8 +273,8 @@ func (*EC2InstanceSetSuite) TestCreate(c *check.C) {
 
                runcalls := ap.client.(*ec2stub).runInstancesCalls
                if c.Check(runcalls, check.HasLen, 1) {
-                       c.Check(runcalls[0].MetadataOptions.HttpEndpoint, check.DeepEquals, aws.String("enabled"))
-                       c.Check(runcalls[0].MetadataOptions.HttpTokens, check.DeepEquals, aws.String("required"))
+                       c.Check(runcalls[0].MetadataOptions.HttpEndpoint, check.DeepEquals, types.InstanceMetadataEndpointStateEnabled)
+                       c.Check(runcalls[0].MetadataOptions.HttpTokens, check.DeepEquals, types.HttpTokensStateRequired)
                }
        }
 }
@@ -333,8 +326,8 @@ func (*EC2InstanceSetSuite) TestCreateFailoverSecondSubnet(c *check.C) {
        ap, img, cluster, reg := GetInstanceSet(c, `{"SubnetID":["subnet-full","subnet-good"]}`)
        ap.client.(*ec2stub).subnetErrorOnRunInstances = map[string]error{
                "subnet-full": &ec2stubError{
-                       code:    "InsufficientFreeAddressesInSubnet",
-                       message: "subnet is full",
+                       Code:    "InsufficientFreeAddressesInSubnet",
+                       Message: "subnet is full",
                },
        }
        inst, err := ap.Create(cluster.InstanceTypes["tiny"], img, nil, "", nil)
@@ -368,49 +361,49 @@ func (*EC2InstanceSetSuite) TestIsErrorSubnetSpecific(c *check.C) {
        c.Check(isErrorSubnetSpecific(errors.New("misc error")), check.Equals, false)
 
        c.Check(isErrorSubnetSpecific(&ec2stubError{
-               code: "InsufficientInstanceCapacity",
+               Code: "InsufficientInstanceCapacity",
        }), check.Equals, true)
 
        c.Check(isErrorSubnetSpecific(&ec2stubError{
-               code: "InsufficientVolumeCapacity",
+               Code: "InsufficientVolumeCapacity",
        }), check.Equals, true)
 
        c.Check(isErrorSubnetSpecific(&ec2stubError{
-               code:    "InsufficientFreeAddressesInSubnet",
-               message: "Not enough free addresses in subnet subnet-abcdefg\n\tstatus code: 400, request id: abcdef01-2345-6789-abcd-ef0123456789",
+               Code:    "InsufficientFreeAddressesInSubnet",
+               Message: "Not enough free addresses in subnet subnet-abcdefg\n\tstatus code: 400, request id: abcdef01-2345-6789-abcd-ef0123456789",
        }), check.Equals, true)
 
        // #21603: (Sometimes?) EC2 returns code InvalidParameterValue
        // even though the code "InsufficientFreeAddressesInSubnet"
        // seems like it must be meant for exactly this error.
        c.Check(isErrorSubnetSpecific(&ec2stubError{
-               code:    "InvalidParameterValue",
-               message: "Not enough free addresses in subnet subnet-abcdefg\n\tstatus code: 400, request id: abcdef01-2345-6789-abcd-ef0123456789",
+               Code:    "InvalidParameterValue",
+               Message: "Not enough free addresses in subnet subnet-abcdefg\n\tstatus code: 400, request id: abcdef01-2345-6789-abcd-ef0123456789",
        }), check.Equals, true)
 
        // Similarly, AWS docs
        // (https://repost.aws/knowledge-center/vpc-insufficient-ip-errors)
        // suggest the following code/message combinations also exist.
        c.Check(isErrorSubnetSpecific(&ec2stubError{
-               code:    "Client.InvalidParameterValue",
-               message: "There aren't sufficient free Ipv4 addresses or prefixes",
+               Code:    "Client.InvalidParameterValue",
+               Message: "There aren't sufficient free Ipv4 addresses or prefixes",
        }), check.Equals, true)
        c.Check(isErrorSubnetSpecific(&ec2stubError{
-               code:    "InvalidParameterValue",
-               message: "There aren't sufficient free Ipv4 addresses or prefixes",
+               Code:    "InvalidParameterValue",
+               Message: "There aren't sufficient free Ipv4 addresses or prefixes",
        }), check.Equals, true)
        // Meanwhile, other AWS docs
        // (https://docs.aws.amazon.com/AWSEC2/latest/APIReference/errors-overview.html)
        // suggest Client.InvalidParameterValue is not a real code but
        // ClientInvalidParameterValue is.
        c.Check(isErrorSubnetSpecific(&ec2stubError{
-               code:    "ClientInvalidParameterValue",
-               message: "There aren't sufficient free Ipv4 addresses or prefixes",
+               Code:    "ClientInvalidParameterValue",
+               Message: "There aren't sufficient free Ipv4 addresses or prefixes",
        }), check.Equals, true)
 
        c.Check(isErrorSubnetSpecific(&ec2stubError{
-               code:    "InvalidParameterValue",
-               message: "Some other invalid parameter error",
+               Code:    "InvalidParameterValue",
+               Message: "Some other invalid parameter error",
        }), check.Equals, false)
 }
 
@@ -423,12 +416,12 @@ func (*EC2InstanceSetSuite) TestCreateAllSubnetsFailing(c *check.C) {
        ap, img, cluster, reg := GetInstanceSet(c, `{"SubnetID":["subnet-full","subnet-broken"]}`)
        ap.client.(*ec2stub).subnetErrorOnRunInstances = map[string]error{
                "subnet-full": &ec2stubError{
-                       code:    "InsufficientFreeAddressesInSubnet",
-                       message: "subnet is full",
+                       Code:    "InsufficientFreeAddressesInSubnet",
+                       Message: "subnet is full",
                },
                "subnet-broken": &ec2stubError{
-                       code:    "InvalidSubnetId.NotFound",
-                       message: "bogus subnet id",
+                       Code:    "InvalidSubnetId.NotFound",
+                       Message: "bogus subnet id",
                },
        }
        _, err := ap.Create(cluster.InstanceTypes["tiny"], img, nil, "", nil)
@@ -464,12 +457,12 @@ func (*EC2InstanceSetSuite) TestCreateOneSubnetFailingCapacity(c *check.C) {
        ap, img, cluster, reg := GetInstanceSet(c, `{"SubnetID":["subnet-full","subnet-broken"]}`)
        ap.client.(*ec2stub).subnetErrorOnRunInstances = map[string]error{
                "subnet-full": &ec2stubError{
-                       code:    "InsufficientFreeAddressesInSubnet",
-                       message: "subnet is full",
+                       Code:    "InsufficientFreeAddressesInSubnet",
+                       Message: "subnet is full",
                },
                "subnet-broken": &ec2stubError{
-                       code:    "InsufficientInstanceCapacity",
-                       message: "insufficient capacity",
+                       Code:    "InsufficientInstanceCapacity",
+                       Message: "insufficient capacity",
                },
        }
        for i := 0; i < 3; i++ {
@@ -560,7 +553,7 @@ func (*EC2InstanceSetSuite) TestInstancePriceHistory(c *check.C) {
                running := 0
                for _, inst := range instances {
                        ec2i := inst.(*ec2Instance).instance
-                       if *ec2i.InstanceLifecycle == "spot" && *ec2i.State.Code&16 != 0 {
+                       if ec2i.InstanceLifecycle == types.InstanceLifecycleTypeSpot && *ec2i.State.Code&16 != 0 {
                                running++
                        }
                }
@@ -591,12 +584,12 @@ func (*EC2InstanceSetSuite) TestInstancePriceHistory(c *check.C) {
 }
 
 func (*EC2InstanceSetSuite) TestWrapError(c *check.C) {
-       retryError := awserr.New("Throttling", "", nil)
+       retryError := &ec2stubError{Code: "Throttling"}
        wrapped := wrapError(retryError, &atomic.Value{})
        _, ok := wrapped.(cloud.RateLimitError)
        c.Check(ok, check.Equals, true)
 
-       quotaError := awserr.New("InstanceLimitExceeded", "", nil)
+       quotaError := &ec2stubError{Code: "InstanceLimitExceeded"}
        wrapped = wrapError(quotaError, nil)
        _, ok = wrapped.(cloud.QuotaError)
        c.Check(ok, check.Equals, true)
@@ -608,7 +601,7 @@ func (*EC2InstanceSetSuite) TestWrapError(c *check.C) {
                {"InsufficientInstanceCapacity", ""},
                {"Unsupported", "Your requested instance type (t3.micro) is not supported in your requested Availability Zone (us-east-1e). Please retry your request by not specifying an Availability Zone or choosing us-east-1a, us-east-1b, us-east-1c, us-east-1d, us-east-1f."},
        } {
-               capacityError := awserr.New(trial.code, trial.msg, nil)
+               capacityError := &ec2stubError{Code: trial.code, Message: trial.msg}
                wrapped = wrapError(capacityError, nil)
                caperr, ok := wrapped.(cloud.CapacityError)
                c.Check(ok, check.Equals, true)